Active Transmitter Combiner 4:1 AC 2 Instructions for use 11
Brief description With the AC 2 4-to-1 active transmitter combiner, the signals of up to four SR 300 IEM G2 transmitters can be combined onto a single antenna. The AC 2 also incorporates DC distribution for powering the transmitters. By using the GA 2 rack adapter, two AC 2 combiners or one AC 2 combiner and one SR 300 IEM G2 stereo transmitter can be mounted into a 19" rack.
Safety instructions Caution! Never open the unit! If units are opened by you in breach of this instruction, the warranty becomes null and void.
Operating controls Red LED for operation indication On/off switch (POWER) DC input (DC IN) for mains unit Cable grip for power supply DC cable Four DC outputs (DC OUT) for powering up to four transmitters Four BNC cables (RF INPUTS) BNC socket (RF OUTPUT) 14
Putting the unit into operation The below connection diagram shows the connections for a 4-channel system. Setting up the unit The unit is suitable for use as table top or can be mounted into a rack. 왘 For mounting the unit into a 19" rack, use the GA 2 rack adapter (optional accessory). 왘 For table top use, fix the plastic feet to the base of the unit.
Connecting the transmitters You can connect up to four SR 300 IEM G2 transmitters to the combiner. The combiner incorporates DC distribution for powering the transmitters. 왘 Pass the cables coming from the combiner’s DC outputs through the cable grips at the rear of the transmitters. 왘 Insert the hollow jack plugs into the sockets transmitters. of the Connecting the antenna The combiner combines the transmission signals of up to four transmitters onto a single antenna.
Connecting the mains unit The combiner is powered via the NT 3 mains unit. To switch the combiner on, press the on/off switch (POWER). The red LED lights up, indicating the the unit is ready for operation. 왘 Pass the cable through the cable grip . 왘 Insert the DC connector on the power supply cable into the DC input . Note: As soon as the combiner is switched on, the built-in fan starts producing a clearly audible operating sound and ensures proper cooling of the unit.
Specifications Active transmitter combiner 4:1 Frequency range 500 to 870 MHz Distribution attenuation 0 dB (±1 dB) RF input power max. 100 mW per input Impedance 50 Ω Power supply 12 V DC ±5 % Current consumption max. 1.5 A +1 A for powering the transmitters Accessories NT 3 Mains unit for AC 2 and four transmitters (e.g. SR 300 IEM G2), output voltage: 12 V DC, output current: 2.5 A, European version NT 3-120 Mains unit for AC 2 and four transmitters (e.g.
ENGLISH The guarantee period for this Sennheiser product is 24 months from the date of purchase. Excluded are accessory items, rechargeable or disposable batteries that are delivered with the product; due to their characteristics these products have a shorter service life that is principally dependent on the individual frequency of use. The guarantee period starts from the date of original purchase. For this reason, we recommend that the sales receipt be retained as proof of purchase.
EG-Konformitäts-Erklärung EC Certificate of Conformity / Déclaration de conformité pour la CEE Certificato di conformitá comunitario Declaración de Conformidad / EG-Conformiteitsverklaring SENNHEISER electronic GmbH & Co.
Bemerkung: Vor Inbetriebnahme sind die jeweiligen länderspezifischen Vorschriften zu beachten! Important: Before putting the device into operation, please observe the respective country-specific regulations! Important: Avant d’utiliser l’appareil, veuillez observer les dispositions légales en vigueur dans votre pays.
Sennheiser electronic GmbH & Co. KG 30900 Wedemark, Germany Phone: +49 (5130) 600 0 Fax: +49 (5130) 600 300 www.sennheiser.com Printed in Germany Publ.
